State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

T-510 CARRIAGE RD

Good

Over: PINE CREEK

0.1 mi N int SR 0028, Clarion, PA

Built 2003 Load: 41.7 t ADT: 50

SR 219-US 219

Good

Over: SR 4015 (MAIN STREET)

CITY OF BRADFORD, McKean, PA

Built 2006 Load: 41.7 t ADT: 3,482

SR4008

Good

Over: LITTLE WICONISCO CREEK

2.5 MI NE MILLERSBURG, Dauphin, PA

Built 2005 Load: 41.7 t ADT: 140

BUS I-83 SR3036

Good

Over: POWDER MILL RD

.1 MI EAST OF LR127, York, PA

Built 2006 Load: 41.7 t ADT: 11,053

RAMP F I-83;SR0083

Good

Over: I-83-RAMP F BUS. I83 SB

0.5 MI. N. OF SR 182, York, PA

Built 2006 Load: 41.7 t ADT: 2,942

PA TPK (I-576)

Good

Over: SR 376 RAMPS RD STRM

FINDLAY, Allegheny, PA

Built 2006 Load: 41.7 t ADT: 2,025

PA TPK (I-576)

Good

Over: SR 0060 RAMPS RD STRM

FINDLAY, Allegheny, PA

Built 2006 Load: 41.7 t ADT: 2,025

SR 99-I 99

Good

Over: BLUE SPRINGS HOLLOW / RD

2 MILES SW PORT MATILDA, Centre, PA

Built 2006 Load: 41.7 t ADT: 6,883

SR3035

Good

Over: YELLOW CREEK

HOMER CITY - YELLOW CR, Indiana, PA

Built 2006 Load: 41.7 t ADT: 3,210

East Pine Street

Good

Over: Mountain Creek

_, Cumberland, PA

Built 2005 Load: 41.7 t ADT: 500

SR 219-US 219

Good

Over: SR 4015 (MAIN STREET)

CITY OF BRADFORD, McKean, PA

Built 2007 Load: 41.7 t ADT: 3,573

SR1006

Good

Over: BEAR CREEK

FAIRVIEW, Butler, PA

Built 2006 Load: 41.7 t ADT: 298

TR 92

Good

Over: WHITELOCK CREEK

.1 M S TR 292, Wyoming, PA

Built 2007 Load: 41.7 t ADT: 2,554

FREW MILL ROAD

Good

Over: SLIPPERY ROCK CREEK

1.0 MI W OF SR 0019, Lawrence, PA

Built 2007 Load: 41.7 t ADT: 305

T-443 (BR. # 332)

Good

Over: LITTLE MUNCY CREEK

2.0 MI SE OF CLARKSTOWN, Lycoming, PA

Built 2007 Load: 41.7 t ADT: 72

SR-453 PA -453

Good

Over: ANDERSON CREEK

CURWENSVILLE BORO., Clearfield, PA

Built 2007 Load: 41.7 t ADT: 4,188

US 222 SB

Good

Over: PA 100

UPPER MACUNGIE, Lehigh, PA

Built 2007 Load: 41.7 t ADT: 20,403

SR 3013 PECAN HILL

Good

Over: T-380 SANDY CREEK

VICTORY TOWNSHIP, Venango, PA

Built 2007 Load: 41.7 t ADT: 417

T-830 FOREMAN RD

Good

Over: AMTRAK

1500 FT SW OF SR 4018, Lancaster, PA

Built 2007 Load: 41.7 t ADT: 400

TWP RD 688

Good

Over: LITTLE WHITELEY CREEK

CUMBERLAND/MONONGAHELA, Greene, PA

Built 2007 Load: 41.7 t ADT: 33

SR 2006

Good

Over: Buckwha Creek

Lower Smith Gap Rd., Carbon, PA

Built 2008 Load: 41.7 t ADT: 1,277

T-358

Good

Over: Trib. to Larrys Creek

Zinck Road, Lycoming, PA

Built 2023 Load: 41.7 t ADT: 20

SR 3010

Good

Over: COXES CREEK

BANDO, Somerset, PA

Built 2008 Load: 41.7 t ADT: 404

REID ROAD (T427)

Good

Over: WEST BR. BRANDYWINE CRK

W CALN; W BRANDYW 18J08, Chester, PA

Built 2008 Load: 41.7 t ADT: 345

SR 199

Good

Over: Norfolk Southern RR

2 Mi. S. of Athens Boro, Bradford, PA

Built 2008 Load: 41.7 t ADT: 2,421

PA 653

Good

Over: SOUTH GLADE CREEK

1.4 MI S NEW CENTERVILLE, Somerset, PA

Built 2008 Load: 41.7 t ADT: 2,196

T-541 GLENN FOX RD

Good

Over: PA TPK (I-76)

NEAR OLD STANTON, Westmoreland, PA

Built 2008 Load: 41.7 t ADT: 500

T-526 Walnut Run C

Good

Over: Walnut Run

West Hanover Twp. Dauphin, Dauphin, PA

Built 2004 Load: 41.7 t ADT: 50

SR 3016 Madison Rd

Good

Over: PA TURNPIKE(I-76) B-469

EAST OF ARONA (MP 72.43), Westmoreland, PA

Built 2007 Load: 41.7 t ADT: 2,398

Mattiss Mil T-550

Good

Over: Wiconisco Creek

Washington Township, Dauphin, PA

Built 2009 Load: 41.7 t ADT: 50

SR 2011

Good

Over: YELLOW BREECHES CREEK

WILLIAMS GROVE, Cumberland, PA

Built 2009 Load: 41.7 t ADT: 4,815

SR 4013

Good

Over: BEAMS RUN

3 MI. SW. OF JENNERSTOWN, Somerset, PA

Built 2009 Load: 41.7 t ADT: 107

SR 0954

Good

Over: LITTLE MAHONING CREEK

SMICKSBURG No. 1, Indiana, PA

Built 2009 Load: 41.7 t ADT: 1,051

SR 87

Good

Over: Little Loyalsock Creek

5.5 mi. SW of Dushore, Sullivan, PA

Built 2009 Load: 41.7 t ADT: 965

T582 PENNY HILL RD

Good

Over: BUTLER CREEK

3 MI SE OF HARFORD, Susquehanna, PA

Built 2009 Load: 41.7 t ADT: 50

FORK HILL ROAD

Good

Over: LEBO RUN

NE CORNER CLINTON COUNTY, Clinton, PA

Built 2009 Load: 41.7 t ADT: 35

SR.2093 Hain Road

Good

Over: 83 NB and SB

1Mile N.E of Shrewsbury, York, PA

Built 2010 Load: 41.7 t ADT: 1,120

SR 2010

Good

Over: NORFOLK SOUTHERN RR

.5 MI SOUTH OF WYALUSING, Bradford, PA

Built 2010 Load: 41.7 t ADT: 5,148

SR 3005

Good

Over: BEECH FLATS CREEK

0.25 MI SO OF EAST CANTON, Bradford, PA

Built 2010 Load: 41.7 t ADT: 491

SR 1024 Lake Rd.

Good

Over: OVER OIL CREEK

BLOOMFIELD TWP, Crawford, PA

Built 2010 Load: 41.7 t ADT: 966

Lincoln Hwy

Good

Over: LONG RUN

1260 East of Rte 48, Allegheny, PA

Built 2010 Load: 41.7 t ADT: 14,106

SR 428 Dempseytown

Good

Over: SUGAR CREEK

OAKLAND TWP, Venango, PA

Built 2010 Load: 41.7 t ADT: 585

SR 2005 Loleta Rd

Good

Over: MILLSTONE CREEK W BR

JENKS TWP, Forest, PA

Built 2010 Load: 41.7 t ADT: 186

SR 4003

Good

Over: EAST LICKING CREEK

1 MI W MIFFLIN, Juniata, PA

Built 2010 Load: 41.7 t ADT: 116

SR 3001

Good

Over: CHEST CREEK

MAHAFFEY, Clearfield, PA

Built 2010 Load: 41.7 t ADT: 474

SR 346-PA 346

Good

Over: KNAPP CREEK

PRENTISVALE, McKean, PA

Built 2010 Load: 41.7 t ADT: 1,076

SR 555-PA555

Good

Over: HICKS RUN

HICKS RUN, Cameron, PA

Built 2010 Load: 41.7 t ADT: 453

Ridge View Road

Good

Over: I-83 NB & SB

1 mi SE of Loganville, York, PA

Built 2010 Load: 41.7 t ADT: 1,048

PA TPK (Toll 43)

Good

Over: T-605

West of Exit M22, Fayette, PA

Built 2009 Load: 41.7 t ADT: 1,000

COLUMBIA STREET

Good

Over: COPLAY CREEK

EAST OF SR 145, Lehigh, PA

Built 2000 Load: 41.7 t ADT: 1,300

Showing 16,951-17,000 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.